portada A Scheme for Self-Issuable E-cash Systems (en Inglés)

A Scheme for Self-Issuable E-cash Systems (en Inglés)

Formato

Libro Físico

Autor

Shinsuke Tamura

Editorial

LAP Lambert Academic Publishing

Idioma

Inglés

N° páginas

Encuadernación

Tapa Blanda

Dimensiones

22.9x15.2x0.5 cm

Peso

0.14 kg.

ISBN13

9786139815531

Categorías

Tecnología de la información: cuestiones generales

A Scheme for Self-Issuable E-cash Systems (en Inglés)

Shinsuke Tamura (Autor) · LAP Lambert Academic Publishing · Tapa Blanda

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Reseña del libro "A Scheme for Self-Issuable E-cash Systems (en Inglés)"

Although e-cash systems are widely used, currently available e-cash is not a complete replacement of real cash, e.g. authorities can know merchandise for which the e-cash was paid from information included in e-cash despite they may be secrets of the cash holders. Also, protection of e-cash from dishonest entities in offline environments is not easy. A payee of e-cash cannot determine whether the e-cash a payer is paying was used already at other places or not when databases about already used e-cash are not available for example. To completely replace real cash with e-cash, this book develops a self-issuable e-cash scheme that satisfies all essential requirements. Namely, cash holders cannot forge e-cash and only a legitimate cash holder can use its e-cash. Also, no one except cash holders themselves can know their purchases or can link their consecutive purchases. In addition, cash holders can divide their e-cash into ones of arbitrary values to pay for small purchases, they can use e-cash that was paid by others, and e-cash is protected from dishonest uses even in offline environments where databases about issued or used e-cash are not available.